135442547 has 2 divisors, whose sum is σ = 135442548. Its totient is φ = 135442546.

The previous prime is 135442537. The next prime is 135442589. The reversal of 135442547 is 745244531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135442547 - 2⁸ = 135442291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135442537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67721273 + 67721274.

It is an arithmetic number, because the mean of its divisors is an integer number (67721274).

Almost surely, 2^135442547 is an apocalyptic number.

135442547 is a deficient number, since it is larger than the sum of its proper divisors (1).

135442547 is an equidigital number, since it uses as much as digits as its factorization.

135442547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 35.

The square root of 135442547 is about 11637.9786475144. The cubic root of 135442547 is about 513.5527242448.

The spelling of 135442547 in words is "one hundred thirty-five million, four hundred forty-two thousand, five hundred forty-seven".